The two-part episode is about a {{bp|Pokémon battle|battle}} in {{bp|Lake Acuity|Eichi Lake}} between the {{bp|main character}}, Satoshi, and his {{bp|rival}}, Shinji. It is also known that Shinji will be using his {{p|Magmortar|Booburn}} against {{bp|Ash's Pikachu|Satoshi's Pikachu}}. While they have battled each other before, those battles were usually interrupted or delayed. This episode will mark their first full battle. This will also be the TV episode debut of Booburn, as it was first seen in a cameo in the {{bp|Pokémon movie|11th movie}}, ''{{bp|Giratina and the Sky Warrior|Giratina and the Sky's Bouquet: Shaymin}}''.